To get rid of pesky fruit flies, take a small glass and fill it to ½" with Apple Cider Vinegar and 2 drops of dishwashing liquid - mix well. You will find those flies drawn to the cup and gone forever!
Get Rid of Ants
Put small piles of cornmeal where you see ants. They eat it, take it "home" & can't digest it. so it kills them. It may take a week or so (especially if it rains) but it works. and you don't have the worry about pets or small children being harmed!